金成洙

柏拉圖三角形的祕密 / by: 凱 翔; 崔榮蘭; 金成洙 (Language materials, printed)

古希臘大冒險 : 畢氏定理篇 / by: 崔榮蘭; 楊詒婷; 金成洙 (Language materials, printed)

數學天才營闖關遊戲 / by: 俞俊在; 凱翔 ; 金成洙 (Language materials, printed)

數學天才營闖關遊戲 / by: 俞俊在; 凱翔; 金成洙 (Language materials, printed)